Wow COOLIUS 2700 BT Operator's Manual page 19

WOW! Coolius 2700BT
Before recovery process start, the machine will self purge and
evacuate the service hoses (if required).
During the recovery process the machine will display the amount of
refrigerant being recovered. this process can be paused by
depressing Stop button and abort the function totally by depressing
the Stop button again or restart the process by pressing the Start
button.
Once the machine has reached a vacuum of -0.25 kPa it will enter
into recovery pause for duration of 3 minutes to allow for any
remaining refrigerant in the A/C system (if any) to boil off.
If the pressure in the A/C system increases above 0 kPa the machine
will automatically return in to recovery re-run to the remove the rest
of the refrigerant which has boiled off in the A/C system.
If recovery re-run is initiated again the machine will pull down to a
further vacuum of -0.30 kPa and then it will pause again for a
further 3 minutes.
If after the 3min. pause there is no further pressure increase in the
A/C system the machine will drain and measure the recovered oil (if
any).
The display will show the total amount of refrigerant recovered and
oil (if any). This will be displayed until the stop button is depressed
which then machine will display main menu again ready to select
another function if required.
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